MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic point towards an attempt to redirect users to malicious content, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://jacksth.ru/strik?utm_term=complete+chemistry+for+cambridge+secondary+1+workbook PDF link annotation
- https://vavulawukuret.weebly.com/uploads/1/3/4/6/134690424/1658179.pdfIn PDF document text
- http://yachts-4-sale.com/gaxanawiliq8i04.pdfIn PDF document text
- http://mazers.fun/893426130149c3ob.pdfIn PDF document text
- https://jakakatis.weebly.com/uploads/1/3/5/3/135323185/3efa99bba122.pdfIn PDF document text
- https://lifalaril.weebly.com/uploads/1/3/4/8/134883644/3987467.pdfIn PDF document text
- https://pujuxapalijened.weebly.com/uploads/1/3/6/0/136009243/7955009.pdfIn PDF document text
- https://puzepoxa.weebly.com/uploads/1/3/4/3/134318678/tibil.pdfIn PDF document text
- https://jezaxinadi.weebly.com/uploads/1/3/4/5/134597346/a2033bc31.pdfIn PDF document text
- https://fotaluxig.weebly.com/uploads/1/3/5/9/135973299/9613558.pdfIn PDF document text
- http://arnautmebel.ru/how_to_get_paid_for_writing_an_ebookz77jh.pdfIn PDF document text
- http://shop50off.info/45663777902u5pug.pdfIn PDF document text
- https://tolawururajetam.weebly.com/uploads/1/3/4/8/134883146/a0620.pdfIn PDF document text
- http://uanews.website/49562920771lsfaw.pdfIn PDF document text
- http://osmosiotzs.fun/music_maker_app_for_pcv0uli.pdfIn PDF document text
- http://ru-1.casa/gonokulevelubawibunidila81mhn.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://1618b3f4-dcc0-4047-a816-eeb1cbe43c51.filesusr.com/ugd/a01749_7dd74797b0c74ad9888a8a695c69f56f.pdf?index=trueIn PDF document text
- https://78bdfa25-736e-4945-a764-db21511aacb9.filesusr.com/ugd/9bd82e_534017d0ed9b410db304d0d43fc345f0.pdf?index=trueIn PDF document text
- https://be1b941d-c88c-475c-9260-a39c9d088d9d.filesusr.com/ugd/5c562d_a105682a97aa4009a7b399dccd1981c0.pdf?index=trueIn PDF document text
- https://55f5e71c-5f54-469f-9449-301c43944234.filesusr.com/ugd/bbdb65_23a68f28045b4aec9e3ab501f48d5c11.pdf?index=trueIn PDF document text
- https://6c892e0d-5736-4b4a-96a3-cd490fd1fe3d.filesusr.com/ugd/1407cd_3e8e3311d41b421e94e26d1154c17c9b.pdf?index=trueIn PDF document text
- https://c78267de-509c-4cb0-9394-6b21b7876e04.filesusr.com/ugd/290ce3_eef6c9db3fd84c298586e85d03e98531.pdf?index=trueIn PDF document text
- https://033a7475-7ccb-45c1-8f1e-38fd320d48d0.filesusr.com/ugd/03a576_4a7ad5761e86416894770345907b9c33.pdf?index=trueIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000efca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFCA | 5924 bytes |
SHA-256: cda1bc20c0f43074ba288aced88b693ada4b82e1fea730f8ec37d07cfe1a5f9b |
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font_01_sfnt_off000103e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103E1 | 11188 bytes |
SHA-256: eabb0a132a9df24a3ce869579950b2a753693170966ccf8843af55c50c973278 |
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font_02_sfnt_off000129d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129D1 | 16164 bytes |
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6 |
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